diff --git a/gluon/tools.py b/gluon/tools.py
index 2759173c..c0d61d2f 100644
--- a/gluon/tools.py
+++ b/gluon/tools.py
@@ -4475,6 +4475,8 @@ class Service(object):
                 return return_response(id, s)
             else:
                 return ''
+        except HTTP, e:
+            raise e
         except Service.JsonRpcException, e:
             return return_error(id, e.code, e.info)
         except BaseException: